Affected machine is a Lenovo Thinkpad X1, 3rd generation (2015). Lspci says VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09) I've recently upgraded to SL7.6. Previously xfreerdp (freerdp rpm from epel) worked as advertised. Now attempting to run xfreerdp crashes the X server. The last lines in /var/log/Xorg.0.log are: [ 1037.968] (EE) [ 1037.968](EE) Backtrace: [ 1037.968] (EE) 0: /usr/bin/X (xorg_backtrace+0x55) [0x562ee2b870f5] [ 1037.968] (EE) 1: /usr/bin/X (0x562ee29d6000+0x1b4d79) [0x562ee2b8ad79] [ 1037.968] (EE) 2: /lib64/libpthread.so.0 (0x7ffaa6b1f000+0xf5d0) [0x7ffaa6b2e 5d0] [ 1037.968] (EE) 3: /usr/bin/X (miHandleValidateExposures+0x29) [0x562ee2b7f919] [ 1037.968] (EE) 4: /usr/bin/X (0x562ee29d6000+0x8652f) [0x562ee2a5c52f] [ 1037.968] (EE) 5: /usr/bin/X (ConfigureWindow+0xa94) [0x562ee2a5d684] [ 1037.968] (EE) 6: /usr/bin/X (0x562ee29d6000+0x569b8) [0x562ee2a2c9b8] [ 1037.968] (EE) 7: /usr/bin/X (0x562ee29d6000+0x5c35b) [0x562ee2a3235b] [ 1037.968] (EE) 8: /usr/bin/X (0x562ee29d6000+0x603aa) [0x562ee2a363aa] [ 1037.969] (EE) 9: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7ffaa67743d5] [ 1037.969] (EE) 10: /usr/bin/X (0x562ee29d6000+0x4a4ce) [0x562ee2a204ce] [ 1037.969] (EE) [ 1037.969] (EE) Segmentation fault at address 0x0 [ 1037.969] (EE) Fatal server error: [ 1037.969] (EE) Caught signal 11 (Segmentation fault). Server aborting [ 1037.969] (EE) [ 1037.969] (EE) Please consult the The X.Org Foundation support at https://urldefense.proofpoint.com/v2/url?u=http-3A__wiki.x.org&d=DwIBAg&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=qQpTYsNaO8kHkkN5KtNX7xgiISxi3xM91jBybadjqN8&s=VWJfp2iH9OEAY13O5P1ahSPdbVGp199bLv0fXYj-b4s&e= for help. [ 1037.969] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 1037.969] (EE) [ 1037.969] (II) AIGLX: Suspending AIGLX clients for VT switch [ 1038.060] (EE) Server terminated with error (1). Closing log file. I've submitted a bug report https://urldefense.proofpoint.com/v2/url?u=https-3A__bugzilla.redhat.com_show-5Fbug.cgi-3Fid-3D1659113&d=DwIBAg&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=qQpTYsNaO8kHkkN5KtNX7xgiISxi3xM91jBybadjqN8&s=YHLOIrVtfZW5LWCaCUDteKPK8rFHYGJN7kbN3by0riY&e=, but if anyone here has advice in the meantime, I'd be grateful. Stephen Isard